JP5497724B2 - Transposing device - Google Patents

Description

  The present invention relates to a transposing device that displays transposition information of a musical scale, chord, and chord.

As a conventional transposing apparatus, there is an apparatus such as Patent Document 1 that displays a musical scale, chord, and chord in correspondence with a scale, chord, and chord after transposition by shifting an arbitrary set value.
3-89468 By using this transposing device, even a beginner such as an amateur can easily perform arbitrary transposition.

However, in the embodiment of Patent Document 1, although arbitrary transposition can be easily performed, it is necessary to transpose how much the transposition is converted into a scale, chord, or chord that is easy to play for beginners. did not understand. In the case of a general 12-tone scale, there are 11 transpositions, and selecting the optimal transposition out of 11 ways is time consuming and inconvenient because it is necessary to repeat 11 transposition operations. As an example, the transposition work when performing the guitar accompaniment of the following music is illustrated.
Example 1 E (C # m) B7 (G # m) A
A transposed music example 1-11 obtained by sequentially transposing this music example 1 is shown below.
Transposition example 1 FDm C7 Am (A #)
Transposition example 2 (F #) (D # m) (C # 7) (A # m) (B)
Transposition Example 3 G Em D7 (Bm) C
Transposition Example 4 (G #) (Fm) (D # 7) (Cm) (C #)
Transposition Example 5 A (F # m) E7 (C # m) D
Transposition Example 6 (A #) (Gm) F7 Dm (D #)
Transposition Example 7 B (G # m) (F # 7) (D # m) E
Transposition Example 8 C Am G7 Em F
Transposition Example 9 (C #) (A # m) (G # 7) (Fm) (F #)
Transposition Example 10 D (Bm) A7 (F # m) G
Transposition Example 11 (D #) (Cm) (A # 7) (Gm) (G #)
Of these symbols, bracketed scales, chords and chords are difficult for beginner guitar players. Here, A to G # indicate 12 scales, and no mark (major), m (minor), and 7 (seven) indicate chord / chord types.

  Of these 11 examples, the only transposition music that a beginner can accompany with a guitar is transposition example 8. (All musical scales, chords and chords are not parenthesized) That is, a beginner can accompany the musical example 1 by transposing scales, chords and chords as in transposition example 8. In this example, unless the transposition work is performed 8 times or the worst 11 times, the optimum transposition cannot be found, and it can be seen that it takes time to perform transposition that can be performed. Therefore, an object of the present invention is to make it easy to perform transposition that can be performed by a beginner.

  In order to solve the above-described problems, the first invention is a first display means for displaying a scale, chord, and chord used in a musical composition, and a transposition means for transposing the scale, chord, and chord by an arbitrary scale. And a second display means for displaying the scale, chord and chord of the music after transposition, and a means for displaying the performance difficulty of the scale, chord and chord of the music after transposition. It is.

  The second invention is a transposing device characterized in that the performance difficulty level is provided for each scale and for each of a plurality of chords and chord types in the first invention.

  According to the first invention and the second invention, it is possible to easily perform a transposition that a beginner can perform.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the first embodiment. The difficulty level display 1 displays the scale after transposition and the difficulty of playing chords and chords for each scale in different colors. FIG. 2 shows a front view of the difficulty level display body 1. The color coding shown here is performed according to the ease of performance for beginners. Blue indicates that it can be played, and red indicates that it cannot be played. It may be customized according to the performance of the performer. Reference numeral 2 denotes a movable body that displays the scale, chord, and chord used in the musical piece to be played. FIG. 3 shows a front view thereof. Use and non-use are displayed by opening and closing the window 3 corresponding to the scale, chord and chord used. Here, the windows corresponding to the scales, chords and chords to be used are opened. This window can be realized by making a U-shaped cut into a corresponding part of the movable body 2 made of cardboard or the like and bending it. The difficulty level display body 1 and the movable body 2 are configured to overlap each other and move freely in the scale direction, overlap each type of chord / chord of each scale, and open the window, the chord / chord of each corresponding scale. There is a positional relationship where the color representing the difficulty level of the performance can be seen. FIG. 1 shows a state in which the window of the movable body 2 is opened in correspondence with the chords and chords used in the music example 1 and is not transposed. A procedure for transposing the musical example 1 to the transposing example 8 that can be performed by a beginner using the first embodiment will be described in detail.

The window of the movable body corresponding to the first chord / chord E of sample music 1 is opened. That is, the lower difficulty indicator 1 is made visible by folding the window at the position where the horizontal line of the scale E intersects the vertical line of the chord type major. Similarly, the windows corresponding to the 2nd to 5th chords and chords are opened.
Move the movable body 2 to the bottom of the difficulty level display body 1 and check the color visible from the window. (State in FIG. 1) Two red colors are visible. Since even one red color can be seen, it cannot be played, so the movable body 2 is moved up by one and the color is confirmed in the same manner until all the colors become blue. All windows turn blue when moved 8 times. This state is shown in FIG. Transposition work is performed using the movable body 2 and the difficulty level display body 1 moved to the position of FIG. Trace the horizontal line of the scale of E of the movable body 2 corresponding to the first chord E of the example 1 and see the scale after transposition at the end of the arrow. There is a scale of C there, and E is a major chord, so it is rewritten as C. In the same way, transposing work is completed after rewriting the second to fifth chords and chords. Since the transposed chords and chords have no chords or chords that beginners cannot play, even beginners can play. In the first embodiment, the moving body is moved linearly, but the same configuration is possible as a rotating body.

  Next, Example 2 will be described with reference to the drawings. FIG. 5 is a front view of the second embodiment. The main body 11 and the rotating body 12 are rotatably stopped by a grommet 13 at the center. Clips 14 to 18 are mounted at clip mounting locations corresponding to the scale used in the music of the main body 11. Increase or decrease the number as needed. The clips are color-coded into two types: 14, 15 and 16 are blue clips corresponding to major, seven chords and chords, and 17 and 18 are red clips corresponding to minor chords and chords. The main body of 11 is displayed by attaching a clip to the clip attachment location of the scale, chord and chord used in the music to be played. The rotating body 12 displays the scale, chord, and chord after transposition, and is color-coded according to the ease of performance for beginners. Blue indicates that major and seven chords and chords are easy to play, and red indicates that minor chords and chords are easy to play. The color coding of the rotating body 12 in FIG. 5 is easy to play A, D, E minor chords and chords, and is colored red, major A, C, D, E, F, G major, seven chords and chords are played. Easily colored blue. A procedure for transposing music example 1 to transposition example 8 that is easy for beginners to perform using Example 2 will be described in detail.

A blue clip representing the type of the major chord is attached to the E clip mounting location of the main body 11 corresponding to the first chord / chord E of the example 1 of music. Similarly, clips corresponding to the second to fifth scales, chords and chords are attached. Rotate the rotating body so that the scale of the rotating body and the scale of the main body are the same. (State in FIG. 5) It is confirmed whether or not the color of the clip and the colored color of the scale of the rotary body at the tip of the scale arrow to which the clip is attached have the same color as the clip. Since even one clip cannot be played unless the color of the clip is visible in the frame of the corresponding scale of the rotator, the rotator 12 is rotated to the right by one turn and the colors are similarly checked until all the same colors are present. It was confirmed that all the same colors were obtained when rotated by 8 frames. This state is shown in FIG. Transposition work is performed in the state of FIG. The scale after the transposition at the end of the arrow of the scale E of the main body 11 corresponding to the first chord E of the example 1 is seen. There is a scale of C there, and E is a major chord, so it is rewritten as C. In the same way, transposing work is completed after rewriting the second to fifth chords and chords. Since the transposed chords and chords have no chords or chords that beginners cannot play, even beginners can play. In the second embodiment, the types of chords and chords are consolidated into two types. However, as in the first embodiment, three types are possible, and only one type of minor chords can be simplified. In addition, the chords and chords used by the clip are displayed. However, the main body 11 may be made of cardboard or the like, and may be displayed by cutting and turning.

Next, Example 3 will be described with reference to the drawings. FIG. 7 is a flowchart of a program that operates in an apparatus including an input means such as a personal computer, processing means, and display means. Using this flowchart, the procedure for displaying the transposition code in correspondence with the original code in the order in which it is easy for a beginner to perform the music example 1 will be described in detail step by step from STP1.
STEP1. Set the general difficulty level for beginners playing guitar chords and chords in advance. FIG. 8 shows a display example of the difficulty level table for each set scale and chord / chord type. Here, difficulty level 1 indicates that performance is easy, difficulty level 2 indicates that performance is difficult, and difficulty level 3 indicates that performance is not possible. For example, for the scale of B, each chord / chord type indicates that B (major) is 3, so it cannot be played, Bm (minor) is 2, so it is difficult to play, and B7 (seven) plays. Indicates that it is easy. When customizing this difficulty level according to each performer, the difficulty level is corrected here.
STEP2. The scale, chord, and chord (original chord) used in the original music (the music before transposition) are entered in sequence. Here, E, C # m, B7, G # m, and A of Musical Example 1 are sequentially input.
STEP3. The difficulty level of the original code is calculated using the numerical value on the difficulty level display screen of FIG. First, calculate the number of chords and chords with difficulty level 3. Here, since only C # m and G # m, it is set to 2. Next, the number of chords and chords with difficulty level 2 is calculated. This number is added as a number after the decimal point to the number of difficulty level three. Here, there are no chords and chords with a difficulty level of 2 and 0, so it is 2.0.
STEP4. Create a +1 chord from the original chord by raising each chord / chord in semitones. Here, F, Dm, C7, Am, and A #. Calculate the difficulty of the +1 transpose code. First, calculate the number of chords and chords with difficulty level 3. Here, only A # is set to 1. Next, the number of chords and chords with difficulty level 2 is calculated. This number is added as a number after the decimal point to the number of difficulty level three. Here, there are no chords and chords with a difficulty level of 2 and 0, so it is 1.0.
STEP5-14. Similarly to STEP 4, transpose codes from +2 to +11 are created, and the difficulty level is calculated in the same manner.
STEP15. The original code input in STEP 2 and the difficulty level calculated in STEP 3 are displayed first, and then the transposition codes and difficulty levels created and calculated in STEP 4 to STEP 14 are displayed in order of difficulty (in this case, in ascending order of numerical values). ) Display in association with the original code in order from the transposition code. An example of this display is shown in FIG. From this display example, the original chord E is converted to C, C # m to Am, B7 to G7, G # m to Em, and A to F. . The transposition frequency is also displayed for reference.

It is a front view of Embodiment 1 of this invention. It is a difficulty level display body front view of Embodiment 1 of this invention. It is a movable body front view of Embodiment 1 of this invention. It is a front view after transposition of Embodiment 1 of this invention. It is a front view of Embodiment 2 of this invention. It is a front view after transposition of Embodiment 2 of this invention. It is a flowchart of Embodiment 3 of this invention. It is a difficulty level display screen of Embodiment 3 of this invention. It is an original code and transposition code display screen of Embodiment 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Difficulty display body of Embodiment 1 2 Movable body of Embodiment 1 3 Window of Embodiment 1 11 Main body of Embodiment 12 12 Movable body of Embodiment 2 13 Eyelet of Embodiment 2 14-18 Clip

Claims (1)

A computer equipped with storage means that stores in advance the degree of difficulty when a beginner plays chords and chords of a stringed instrument for each scale, chord, and chord type,
Sequentially receiving scales, chords and chords used in the music before transposition, which are input using the input means;
Referring to the storage means, summing the difficulty of each scale, chord, chord used in the music before transposition, and calculating the difficulty of the music before transposition;
Each chord and chord used in the musical composition before transposition is created by adding a semitone to each of the chords and chords, and each scale and chord used in the musical composition of the +1 transposing code is created by referring to the storage means Calculating the difficulty level of the music with the +1 transcoding code by summing up the difficulty levels of the chords;
Similarly, a +11 transpose code is created from the +2 transpose code, and the difficulty of each scale, chord, and chord used in the music of each transpose code is also summed, and the difficulty of the music of each transpose code is calculated. And steps to
Rearranging the transposition codes and the difficulty levels on the display means in the order of difficulty, and displaying them in association with the chords and the difficulty levels of the music before the transposition;
Chord / chord transposition program for stringed instruments.

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